Ch. R - Review of Basic Concepts
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- Write each fraction in lowest terms. 4/12
Problem 8
- Find {16, 18, 21, 50} ∩ {15, 16, 17, 18}.
Problem 8
- Evaluate each expression. 2*5 - 10/12
Problem 8
- Perform the indicated operations. -2x^3(x^4-8)
Problem 8
Problem 8
Determine whether each statement is true or false. If false, correct the right side of the equation. (m2/3)(m1/3) = m2/9
- Find {16, 18, 21, 50} ∪ {15, 16, 17, 18}.
Problem 9
- Evaluate each expression. |-4|
Problem 9
- Work each problem. Which of the following is the correct complete factorization of x^4-1? A. (x^2-1)(x^2+1) B.(x^2+1)(x+1)(x-1) C. (x^2-1)^2 D. (x-1)^2(x+1)^2
Problem 9
- Perform the operation and/or simplify each of the following. Assume all variables represent positive real numbers. 3√xy - 8√xy
Problem 9
Problem 9a
Perform the indicated operation, and write each answer in lowest terms. 2x/5 + x/4
- Write each fraction in lowest terms. 16/20
Problem 10
- Work each problem. Which of the following is the correct factorization of x^3+8? A. (x+2)^3 B. (x+2)(x^2+2x+4) C. (x+2)(x^2-2x+4) D. (x+2)(x^2-4x+4)
Problem 10
- Perform the indicated operations. (10m^4-4m^2)/2m
Problem 10
Problem 10
Match each expression in Column I with its equivalent expression in Column II. Choices may be used once, more than once, or not at all. a. 5-3 b. -5-3 c. (-5)-3 d. -(-5)-3 A. 125 B. -125 C. 1/125 D. -1/125
- Perform the operation and/or simplify each of the following. Assume all variables represent positive real numbers. (2 + √3) (2 - √3)
Problem 10
- Evaluate each expression. |-10|
Problem 11
- Write each fraction in lowest terms. 90/150
Problem 11
- Identify each set as finite or infinite. Then determine whether 10 is an element of the set. {4, 5, 6,...., 15}
Problem 11
- Factor out the greatest common factor from each polynomial. See Example 1. 12m+60
Problem 11
- Identify each expression as a polynomial or not a polynomial. For each polynomial, give the degree and identify it as a monomial, binomial, trinomial, or none of these.See Example 1. -5x^11
Problem 11
- Write each root using exponents and evaluate. ∛125
Problem 11
Problem 11a
Find the domain of each rational expression. (x + 3) / (x - 6)
- Write each fraction in lowest terms. 100/140
Problem 12
- Evaluate each expression. |-15|
Problem 12
Problem 12
Simplify each expression. See Example 1. (3y4)(-6y3)
- Write each root using exponents and evaluate. ∛216
Problem 12
Problem 12a
Find the domain of each rational expression. (2x - 4) / (x + 7)
- Write each fraction in lowest terms. 18/90
Problem 13
- Identify each set as finite or infinite. Then determine whether 10 is an element of the set. {1, 1/2, 1/4, 1/8, ....}
Problem 13
- Evaluate each expression. -|4/7|
Problem 13